Chef knife



FIG. 1 is a front elevational view of a chef knife showing my new design;

FIG. 2 is a rear elevational view thereof; and

FIG. 3 is a left elevational view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top side view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view of a chef knife showing my new design.

The broken lines in the figures are for the purposes of illustrating portions of the chef knife , which form no part of the claimed design. 

CLAIM The ornamental design for a chef knife, as shown and described. 